children, 19-year-old corey? and 17-year-old david come with him. >> he spends more time out here than i do. >> reporter: many of the people on opposite sides of this fence have known each other for years. locked in a very public battle over the very most private of decisions. laurie is one of the clinic escorts. >> never stops, they're here, we're here. >> reporter: tanya is here to beg women to reconsider why they have come. >> actually, she is never here, she is only here because i'm here. tanya likes the camera. she is kind of a camera-whore, you don't intimidate me. >> i'm not trying to. >> really, tanya? >> reporter: meanwhile, back inside, dr. parker spent time behind the closed doors, doing what he, too, believes is god's work. at the clinic, he braces for bad news. >> they always say it is darkest right before the dawn.